1987 1200I

[M.L. Cook]

I am wondering if I can install the Coils. Ignition Control Unit and Pulse Generator from a 1976 1100 ? I already have the 1976 and there is a problem with the 1987 1200. And I gave up reading the color coded wiring diagram.

[DaveO430]

A 76 has no ignition control unit or pulse generator it has points ignition, unless it has been converted to electronic which won't work on a 1200 anyway. I can't read those spaghetti diagrams either, that's why manufacturers started making these.

[brianinpa]

A 76 has no ignition control unit or pulse generator it has points ignition, unless it has been converted to electronic which won't work on a 1200 anyway. I can't read those spaghetti diagrams either, that's why manufacturers started making these.

Hey Dave, where did you find those wiring diagrams?

[DaveO430]

A 76 has no ignition control unit or pulse generator it has points ignition, unless it has been converted to electronic which won't work on a 1200 anyway. I can't read those spaghetti diagrams either, that's why manufacturers started making these.

Hey Dave, where did you find those wiring diagrams?

In the Honda electrical troubleshooting manual.

[brianinpa]

That’s what I thought. I have a pdf of it somewhere... now I need to find it.

[virgilmobile]

The problem with fitting another ignition system to the 1200 is the ignition advance system.
The 1000 and 1100 used a combination of mechanical (1000) advance and the 1100 has both mechanical and vacuum advance.
The 1200 timing is changed by it's module control system..A vacuum sensor and gear selection swtiching handle this.

[virgilmobile]

The problem with fitting another ignition system to the 1200 is the ignition advance system.
The 1000 and 1100 used a combination of mechanical (1000) advance and the 1100 has both mechanical and vacuum operated mechanical advance.
The 1200 timing (pulse coil position) are in a fixed position and timing is changed by it's module control system..A vacuum sensor and gear selection swtiching handle this.

[M.L. Cook]

OK, see the four wires? One is yellow with a blue stripe. One is blue with a yellow stripe, black with a white stripe and then there is a solid green wire. On the colored wiring diagram this green wire shares connects with the fuel pump, thermos switch, and even the horns! Is it safe to say this is a 12VDC source?
Also there is a wire that is green with a red stripe. It comes out of the ICU as a black wire. It goes to gear shift sensor to OD and ‘E’. What is ‘E’?
This should be an easy task hooking these components up but I cannot get any spark to the plugs!

[WingAdmin]

OK, see the four wires? One is yellow with a blue stripe. One is blue with a yellow stripe, black with a white stripe and then there is a solid green wire. On the colored wiring diagram this green wire shares connects with the fuel pump, thermos switch, and even the horns! Is it safe to say this is a 12VDC source?
Also there is a wire that is green with a red stripe. It comes out of the ICU as a black wire. It goes to gear shift sensor to OD and ‘E’. What is ‘E’?
This should be an easy task hooking these components up but I cannot get any spark to the plugs!

On Goldwings, the solid green wire is almost always a ground, which is why you see it connected to so many things.

Most often solid black is switched +12v, and solid yellow is always-on +12v.

[DaveO430]

M.L. Cook , can you not see the pictures I posted?

[Shadowjack]

I've been kind of following this, and I'm confused as to what you're attempting to do. You originally said you wanted to adapt the system from a 1976 1000 to a 1200, but the picture you show is an '84 1200 ignition module. Neither 1000s nor 1100s used a module like that. BTW, that one won't work on '85-'87; the pulsers are different. The late-model has a blue part-number sticker, not gray. The pulsers for '84 ohm out about 1200 ohms, the later ones should be about 330. So if you were combining parts, maybe that's why you're not getting anything out of it.

Regardless, the 1200 module has the 2 pigtails off it. One has 6 wires, one has 4.
The 4-wire plug connects to the blue/yellow stripe wire which feeds the 3/4 coil and triggers the fuel pump relay, the yellow/blue stripe wire which feeds the 1/2 coil and the tach, a black/white stripe wire which comes from the kill switch (ignition power), and the green wire, which is ground.
The 6-pin connector connects to the ignition pulsers through a yellow and yellow/white stripe pair and a blue and blue/white stripe pair. The other two wires are a green/orange stripe, which tells the module it's in fifth gear, and a red/white stripe, which tells it it's in fourth. On the module pigtail, these wires are both black/blue stripe, not just black. They connect to the same point inside so you get vacuum advance in both gears. The green/orange wire connects to the gear position switch, the OD light, and on an Aspencade, to the cruise module.

[M.L. Cook]

The more questions I ask the more I see there are a few that post that are not on the same page as I am. Let me ask just two questions !

1 Which wire do I attach a 12 VDC source to?

2 What wire is the ground ?

NOW PLEASE TRY TO IMAGINE a IGNITION CONTROL UNIT a COIL ASSEMBLY and a PULSE GENERATOR setting on a bench all by its self. There also is a 12 Volt battery. All I am want is to wire these parts and get the plugs to fire when I pass a ferrous material pass the PULSE Generator.

Have I made myself clear?

[brianinpa]

Green is ground
Black and white is the power lead from the kill switch
The yellow/blue (#1 & #3) and blue/yellow (#2 &#4) are the signal wire from the control unit to either coil.

[DaveO430]

Those diagrams I posted in the second post are all you need to know, everything relevant to the ignition system is right there in an easy to read format.

[M.L. Cook]

On the electrical circuit (Colored) the green wire from the Ignition Control Unit goes to the Regulator Rectifier, Thermo switch, Fuel Pump, turn signal unit, clutch switch and to the Horns. And this is a ground?

Can you see this on the Circuit ? Take the horns ! Is the Diagram wrong ?

[skier]

The green wire is ground. It is drawn on the schematic in such a way that it is shown connected to all the components. It is more common to see components connected to a ground symbol than strung together. In that schematic, the ground symbol is just to the right of the horns.

[DaveO430]

On the electrical circuit (Colored) the green wire from the Ignition Control Unit goes to the Regulator Rectifier, Thermo switch, Fuel Pump, turn signal unit, clutch switch and to the Horns. And this is a ground?

Can you see this on the Circuit ? Take the horns ! Is the Diagram wrong ?

Again, if you will look at the second diagram I posted, at the bottom (as ground is always in these diagrams, positive is from the top) is the green (ground wire) If you will notice there is a box beside the wire that states "see ground distribution". If you were to look at ground distribution in the manual it shows all the ground wires are connected to a central point & all the splices in the circuit.
If you continue ignoring advise given it will stop coming.

[Shadowjack]

In my opinion, that's a bad diagram; the colors aren't all that much different, and the black and red markers are masking the printed colors now. It would probably be better to use a black-and-white drawing so you'd have to read the labels.
Honda convention has been to use darkish green (just "G" for green on all diagrams) for all ground wires since at least the 50s. The horn wires are green for ground, and LIGHT GREEN for the power. You can see that they're slightly different shades at the horns. The Light Green wire comes directly from the horn switch, no other connections.
Now I see where you were asking about the letter "E". It appears that this drawing must be extracted from an Aspencade original diagram; these wires must go up to the LCD dashboard, which is not present on an Interstate.

[M.L. Cook]

This engine is from a 1987 Goldwing Interstate. There are items that are not clear!

But since nothing I was doing was working I was looking into the wiring. And I over looked the obvious.

The ICU is bad ! Honda no longer can supply a new ICU. The local Honda Motorcycle Dealer did have three used one. Now I have spark.

I don't know if the photos of what this engine is going in but it is a Pulse Autocycle.

[landisr]

Congrats on finding your spark problem.

A Pulse Autocycle... you don't hear about them very often. My buddy has one that he is restoring. It still has the original Yamaha motor.

Ron in AZ